Carnoraptor Posted July 30, 2019 Share Posted July 30, 2019 I have a fossil found in the Hell Creek Formation in South Dakota. Through studying I have not found a bone that matches mine in any known Hell Creek dinosaur. The bone is 8 1/4 inches tall, 5 inches long, and a width of 1 3/4 inches. The fossil weighs 2 lbs and 14.2 ounces. My belief is that it is from an ornithischian, possibly a ceratopsian or an ornithopod. It has a large hole in it for bone marrow, and at first glance looks like a human hip bone. Please help ID my fossil! Thanks!!!! -Carnoraptor Link to comment Share on other sites More sharing options...
caldigger Posted July 30, 2019 Share Posted July 30, 2019 You might post more pics from other sides. The more the better. It looks like it is pretty worn so some of the diagnostic features may be lost. Link to comment Share on other sites More sharing options...
Haravex Posted July 31, 2019 Share Posted July 31, 2019 I dont feel there will be anything diagnostic to this piece looks too water worn imo. Link to comment Share on other sites More sharing options...
Troodon Posted July 31, 2019 Share Posted July 31, 2019 Looks like a nondescript weathered bone but a photo of the other side might show some diagnostic features but I agree on the surface it's probably ornithischian. Link to comment Share on other sites More sharing options...
Carnoraptor Posted July 31, 2019 Author Share Posted July 31, 2019 More pictures were requested. The photos were too big to add to the post so here are some more Link to comment Share on other sites More sharing options...
Elasmohunter Posted July 31, 2019 Share Posted July 31, 2019 Greetings! I agree with the others that it's probably ornithischian but a little too worn to identify with certainty. A study by White, Fastovsky, & Sheehan (1998) estimated the relative abundances of different dinosaur taxa in the Hell Creek Fm. The two most common ornithisichian taxa were the Ceratopsidae (61%) and Hadrosauridae (23%). Given these abundances, your bony is probably a ceratopsid. https://pubs.geoscienceworld.org/sepm/palaios/article-abstract/13/1/41/246710 Link to comment Share on other sites More sharing options...
fifbrindacier Posted July 31, 2019 Share Posted July 31, 2019 15 hours ago, Haravex said: I dont feel there will be anything diagnostic to this piece looks too water worn imo. Hi, i've seen several of you writing imo but i don't know what it means. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
dhiggi Posted July 31, 2019 Share Posted July 31, 2019 Just now, fifbrindacier said: Hi, i've seen several of you writing imo but i don't know what it means. imo = in my opinion Link to comment Share on other sites More sharing options...
Coco Posted July 31, 2019 Share Posted July 31, 2019 Hi, Sophie, some abbreviations like imo are underlined with small points. When this is the case, by placing your mouse on the word you see the definition Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
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